Tutorial for application of multimeter and identifying live wire

I believe those from science and engineering backgrounds who like to DIY must be familiar with the multimeter.
However, this may not be the case for most of the housewives or mummies.
No worry! Today, we will share with you the basic operation and application of multimeter.
Let's Go!!!
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#三用電表 # live wire #Multimeter #house renovation #utilities #DIY #宅水電